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61105056146 = 2151397509659
BaseRepresentation
bin111000111010001001…
…010010100110010010
312211201111221110210122
4320322021102212102
52000120343244041
644023221230242
74262145256511
oct707211224622
9184644843718
1061105056146
1123a07236102
12ba13b62382
1359ba68b374
142d5954a678
1518c9786c4b
hexe3a252992

61105056146 has 16 divisors (see below), whose sum is σ = 92497174080. Its totient is φ = 30273685200.

The previous prime is 61105056113. The next prime is 61105056151. The reversal of 61105056146 is 64165050116.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134936 + ... + 374723.

It is an arithmetic number, because the mean of its divisors is an integer number (5781073380).

Almost surely, 261105056146 is an apocalyptic number.

61105056146 is a deficient number, since it is larger than the sum of its proper divisors (31392117934).

61105056146 is a wasteful number, since it uses less digits than its factorization.

61105056146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510209.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 61105056146 in words is "sixty-one billion, one hundred five million, fifty-six thousand, one hundred forty-six".

Divisors: 1 2 151 302 397 794 59947 119894 509659 1019318 76958509 153917018 202334623 404669246 30552528073 61105056146